Question: 4. Is the set (2, 3] equal to the statement 2 < x 3 ? Why? 5. Are the sets [4, 5] and {4, 5}

4. Is the set (2, 3] equal to the statement 2 < x 3 ? Why? 5. Are the sets [4, 5] and {4, 5} the same? Why? 6. (a) What is the complement of the set [4, 5] if the universal set is [0, 6]? Just give the answer. (b) What is the complement of the set {4, 5} if the universal set is {0, 1, 2, 3, 4, 5, 6}? Just give the answer. 7. Disprove the following statements: (a) If A, B and C are sets and A B = A C then B = C. (b) [3, 6) (5.999, 7] = .

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